Rotational microtome



FIG. 1 is a left side perspective view of a rotational microtome embodying my new design;

FIG. 2 is a right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a top view thereof.

The bottom of the device is not visible in normal use and does not constitute part of the ornamental design. 

The ornamental design for a rotational microtome, as shown and described. 